Portion of an electronic mouse



FIG. 1 is a rear perspective view of a portion of an electronic mouse showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a rear perspective view of an alternate embodiment of our new design;

FIG. 8 is a top view thereof;

FIG. 9 is left side view thereof;

FIG. 10 is a right side thereof;

FIG. 11 is a front view thereof; and,

FIG. 12 is a rear view thereof.

The broken line showing of various regions in the Figures, the unshaded areas therein and the remainder of the portion of an electronic mouse is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of an electronic mouse, as shown and described. 